PARK CITY, Utah — A few years ago, you may have seen Mandy Schendel attend a festival like Sundance to help with planning one of the many lavish events held here. But the former Miss Washington winner, events manager and publicist is now no longer a person coordinating things behind-the-scenes. She’s in front of the camera — her phone’s camera, to be exact — filming footage from the biggest red carpets, panels and parties at the coveted film festival. All her content is uploaded to TikTok,